SSH, FTP flutter

[Richard Galvez]

Hello everyone,

I have a problem with the sensitivity of the check_ssh and check_ftp
services in my Nagios monitoring. I have a medium sized network of 100+
servers all running ssh and ftp (with the exception of some) and the
service seems to come in and out, in particular with the ssh service
check. I know the problem, it's just that I have scan attacks regularly
on my network (no one gets in though) but I would like to suppress these
alerts as they don't pose an actual problem, just a scan attack. In
particular, the ssh service returns the string "server answer: " when
someone is scanning it, and I would like a way of just making that take
it to warning level rather than critical.

Any ideas? I need to stop this flutter, I get alerted regularly..

Regards,
Richard


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